dpfc_ctl &= ~DPFC_CTL_EN;
I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl);
- if (IS_IVYBRIDGE(dev))
- /* WaFbcDisableDpfcClockGating:ivb */
- I915_WRITE(ILK_DSPCLK_GATE_D,
- I915_READ(ILK_DSPCLK_GATE_D) &
- ~ILK_DPFCUNIT_CLOCK_GATE_DISABLE);
-
- if (IS_HASWELL(dev))
- /* WaFbcDisableDpfcClockGating:hsw */
- I915_WRITE(HSW_CLKGATE_DISABLE_PART_1,
- I915_READ(HSW_CLKGATE_DISABLE_PART_1) &
- ~HSW_DPFC_GATING_DISABLE);
-
DRM_DEBUG_KMS("disabled FBC\n");
}
}
if (IS_IVYBRIDGE(dev)) {
/* WaFbcAsynchFlipDisableFbcQueue:ivb */
I915_WRITE(ILK_DISPLAY_CHICKEN1, ILK_FBCQ_DIS);
- /* WaFbcDisableDpfcClockGating:ivb */
- I915_WRITE(ILK_DSPCLK_GATE_D,
- I915_READ(ILK_DSPCLK_GATE_D) |
- ILK_DPFCUNIT_CLOCK_GATE_DISABLE);
} else {
/* WaFbcAsynchFlipDisableFbcQueue:hsw */
I915_WRITE(HSW_PIPE_SLICE_CHICKEN_1(intel_crtc->pipe),
HSW_BYPASS_FBC_QUEUE);
- /* WaFbcDisableDpfcClockGating:hsw */
- I915_WRITE(HSW_CLKGATE_DISABLE_PART_1,
- I915_READ(HSW_CLKGATE_DISABLE_PART_1) |
- HSW_DPFC_GATING_DISABLE);
}
I915_WRITE(SNB_DPFC_CTL_SA,
static unsigned int ilk_display_fifo_size(const struct drm_device *dev)
{
- if (INTEL_INFO(dev)->gen >= 7)
+ if (INTEL_INFO(dev)->gen >= 8)
+ return 3072;
+ else if (INTEL_INFO(dev)->gen >= 7)
return 768;
else
return 512;
}
/* clamp to max that the registers can hold */
- if (INTEL_INFO(dev)->gen >= 7)
+ if (INTEL_INFO(dev)->gen >= 8)
+ max = level == 0 ? 255 : 2047;
+ else if (INTEL_INFO(dev)->gen >= 7)
/* IVB/HSW primary/sprite plane watermarks */
max = level == 0 ? 127 : 1023;
else if (!is_sprite)
}
/* Calculate the maximum FBC watermark */
-static unsigned int ilk_fbc_wm_max(void)
+static unsigned int ilk_fbc_wm_max(struct drm_device *dev)
{
/* max that registers can hold */
- return 15;
+ if (INTEL_INFO(dev)->gen >= 8)
+ return 31;
+ else
+ return 15;
}
static void ilk_compute_wm_maximums(struct drm_device *dev,
max->pri = ilk_plane_wm_max(dev, level, config, ddb_partitioning, false);
max->spr = ilk_plane_wm_max(dev, level, config, ddb_partitioning, true);
max->cur = ilk_cursor_wm_max(dev, level, config);
- max->fbc = ilk_fbc_wm_max();
+ max->fbc = ilk_fbc_wm_max(dev);
}
static bool ilk_validate_wm_level(int level,
if (!r->enable)
break;
- results->wm_lp[wm_lp - 1] = HSW_WM_LP_VAL(level * 2,
- r->fbc_val,
- r->pri_val,
- r->cur_val);
+ results->wm_lp[wm_lp - 1] = WM3_LP_EN |
+ ((level * 2) << WM1_LP_LATENCY_SHIFT) |
+ (r->pri_val << WM1_LP_SR_SHIFT) |
+ r->cur_val;
+
+ if (INTEL_INFO(dev)->gen >= 8)
+ results->wm_lp[wm_lp - 1] |=
+ r->fbc_val << WM1_LP_FBC_SHIFT_BDW;
+ else
+ results->wm_lp[wm_lp - 1] |=
+ r->fbc_val << WM1_LP_FBC_SHIFT;
+
results->wm_lp_spr[wm_lp - 1] = r->spr_val;
}
I915_WRITE(GEN6_PMINTRMSK, ~enabled_intrs);
}
+static void gen8_enable_rps(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_ring_buffer *ring;
+ uint32_t rc6_mask = 0, rp_state_cap;
+ int unused;
+
+ /* 1a: Software RC state - RC0 */
+ I915_WRITE(GEN6_RC_STATE, 0);
+
+ /* 1c & 1d: Get forcewake during program sequence. Although the driver
+ * hasn't enabled a state yet where we need forcewake, BIOS may have.*/
+ gen6_gt_force_wake_get(dev_priv);
+
+ /* 2a: Disable RC states. */
+ I915_WRITE(GEN6_RC_CONTROL, 0);
+
+ rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
+
+ /* 2b: Program RC6 thresholds.*/
+ I915_WRITE(GEN6_RC6_WAKE_RATE_LIMIT, 40 << 16);
+ I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000); /* 12500 * 1280ns */
+ I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25); /* 25 * 1280ns */
+ for_each_ring(ring, dev_priv, unused)
+ I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10);
+ I915_WRITE(GEN6_RC_SLEEP, 0);
+ I915_WRITE(GEN6_RC6_THRESHOLD, 50000); /* 50/125ms per EI */
+
+ /* 3: Enable RC6 */
+ if (intel_enable_rc6(dev) & INTEL_RC6_ENABLE)
+ rc6_mask = GEN6_RC_CTL_RC6_ENABLE;
+ DRM_INFO("RC6 %s\n", (rc6_mask & GEN6_RC_CTL_RC6_ENABLE) ? "on" : "off");
+ I915_WRITE(GEN6_RC_CONTROL, GEN6_RC_CTL_HW_ENABLE |
+ GEN6_RC_CTL_EI_MODE(1) |
+ rc6_mask);
+
+ /* 4 Program defaults and thresholds for RPS*/
+ I915_WRITE(GEN6_RPNSWREQ, HSW_FREQUENCY(10)); /* Request 500 MHz */
+ I915_WRITE(GEN6_RC_VIDEO_FREQ, HSW_FREQUENCY(12)); /* Request 600 MHz */
+ /* NB: Docs say 1s, and 1000000 - which aren't equivalent */
+ I915_WRITE(GEN6_RP_DOWN_TIMEOUT, 100000000 / 128); /* 1 second timeout */
+
+ /* Docs recommend 900MHz, and 300 MHz respectively */
+ I915_WRITE(GEN6_RP_INTERRUPT_LIMITS,
+ dev_priv->rps.max_delay << 24 |
+ dev_priv->rps.min_delay << 16);
+
+ I915_WRITE(GEN6_RP_UP_THRESHOLD, 7600000 / 128); /* 76ms busyness per EI, 90% */
+ I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 31300000 / 128); /* 313ms busyness per EI, 70%*/
+ I915_WRITE(GEN6_RP_UP_EI, 66000); /* 84.48ms, XXX: random? */
+ I915_WRITE(GEN6_RP_DOWN_EI, 350000); /* 448ms, XXX: random? */
+
+ I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
+
+ /* 5: Enable RPS */
+ I915_WRITE(GEN6_RP_CONTROL,
+ GEN6_RP_MEDIA_TURBO |
+ GEN6_RP_MEDIA_HW_NORMAL_MODE |
+ GEN6_RP_MEDIA_IS_GFX |
+ GEN6_RP_ENABLE |
+ GEN6_RP_UP_BUSY_AVG |
+ GEN6_RP_DOWN_IDLE_AVG);
+
+ /* 6: Ring frequency + overclocking (our driver does this later */
+
+ gen6_set_rps(dev, (I915_READ(GEN6_GT_PERF_STATUS) & 0xff00) >> 8);
+
+ gen6_enable_rps_interrupts(dev);
+
+ gen6_gt_force_wake_put(dev_priv);
+}
+
static void gen6_enable_rps(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
/* Convert from kHz to MHz */
max_ia_freq /= 1000;
- min_ring_freq = I915_READ(MCHBAR_MIRROR_BASE_SNB + DCLK) & 0xf;
+ min_ring_freq = I915_READ(DCLK) & 0xf;
/* convert DDR frequency from units of 266.6MHz to bandwidth */
min_ring_freq = mult_frac(min_ring_freq, 8, 3);
int diff = dev_priv->rps.max_delay - gpu_freq;
unsigned int ia_freq = 0, ring_freq = 0;
- if (IS_HASWELL(dev)) {
+ if (INTEL_INFO(dev)->gen >= 8) {
+ /* max(2 * GT, DDR). NB: GT is 50MHz units */
+ ring_freq = max(min_ring_freq, gpu_freq);
+ } else if (IS_HASWELL(dev)) {
ring_freq = mult_frac(gpu_freq, 5, 4);
ring_freq = max(min_ring_freq, ring_freq);
/* leave ia_freq as the default, chosen by cpufreq */
if (IS_VALLEYVIEW(dev)) {
valleyview_enable_rps(dev);
+ } else if (IS_BROADWELL(dev)) {
+ gen8_enable_rps(dev);
+ gen6_update_ring_freq(dev);
} else {
gen6_enable_rps(dev);
gen6_update_ring_freq(dev);
* gating for the panel power sequencer or it will fail to
* start up when no ports are active.
*/
- I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE);
+ I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE |
+ PCH_DPLUNIT_CLOCK_GATE_DISABLE |
+ PCH_CPUNIT_CLOCK_GATE_DISABLE);
I915_WRITE(SOUTH_CHICKEN2, I915_READ(SOUTH_CHICKEN2) |
DPLS_EDP_PPS_FIX_DIS);
/* The below fixes the weird display corruption, a few pixels shifted
}
}
+static void gen8_init_clock_gating(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ enum pipe i;
+
+ I915_WRITE(WM3_LP_ILK, 0);
+ I915_WRITE(WM2_LP_ILK, 0);
+ I915_WRITE(WM1_LP_ILK, 0);
+
+ /* FIXME(BDW): Check all the w/a, some might only apply to
+ * pre-production hw. */
+
+ /* WaSwitchSolVfFArbitrationPriority */
+ I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL);
+
+ /* WaPsrDPAMaskVBlankInSRD */
+ I915_WRITE(CHICKEN_PAR1_1,
+ I915_READ(CHICKEN_PAR1_1) | DPA_MASK_VBLANK_SRD);
+
+ /* WaPsrDPRSUnmaskVBlankInSRD */
+ for_each_pipe(i) {
+ I915_WRITE(CHICKEN_PIPESL_1(i),
+ I915_READ(CHICKEN_PIPESL_1(i) |
+ DPRS_MASK_VBLANK_SRD));
+ }
+}
+
static void haswell_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER,
GEN7_WA_L3_CHICKEN_MODE);
+ /* L3 caching of data atomics doesn't work -- disable it. */
+ I915_WRITE(HSW_SCRATCH1, HSW_SCRATCH1_L3_DATA_ATOMICS_DISABLE);
+ I915_WRITE(HSW_ROW_CHICKEN3,
+ _MASKED_BIT_ENABLE(HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE));
+
/* This is required by WaCatErrorRejectionIssue:hsw */
I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG,
I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) |
BUG_ON(BIT(domain) & ~POWER_DOMAIN_MASK);
- if (IS_HASWELL(dev)) {
+ if (IS_BROADWELL(dev)) {
+ always_on_domains = BDW_ALWAYS_ON_POWER_DOMAINS;
+ } else if (IS_HASWELL(dev)) {
always_on_domains = HSW_ALWAYS_ON_POWER_DOMAINS;
} else {
WARN_ON(1);
}
}
-static void __intel_power_well_get(struct i915_power_well *power_well)
+static void __intel_power_well_get(struct drm_device *dev,
+ struct i915_power_well *power_well)
{
if (!power_well->count++)
- __intel_set_power_well(power_well->device, true);
+ __intel_set_power_well(dev, true);
}
-static void __intel_power_well_put(struct i915_power_well *power_well)
+static void __intel_power_well_put(struct drm_device *dev,
+ struct i915_power_well *power_well)
{
WARN_ON(!power_well->count);
- if (!--power_well->count)
- __intel_set_power_well(power_well->device, false);
+ if (!--power_well->count && i915_disable_power_well)
+ __intel_set_power_well(dev, false);
}
void intel_display_power_get(struct drm_device *dev,
enum intel_display_power_domain domain)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- struct i915_power_well *power_well = &dev_priv->power_well;
+ struct i915_power_domains *power_domains;
if (!HAS_POWER_WELL(dev))
return;
if (is_always_on_power_domain(dev, domain))
return;
- spin_lock_irq(&power_well->lock);
- __intel_power_well_get(power_well);
- spin_unlock_irq(&power_well->lock);
+ power_domains = &dev_priv->power_domains;
+
+ mutex_lock(&power_domains->lock);
+ __intel_power_well_get(dev, &power_domains->power_wells[0]);
+ mutex_unlock(&power_domains->lock);
}
void intel_display_power_put(struct drm_device *dev,
enum intel_display_power_domain domain)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- struct i915_power_well *power_well = &dev_priv->power_well;
+ struct i915_power_domains *power_domains;
if (!HAS_POWER_WELL(dev))
return;
if (is_always_on_power_domain(dev, domain))
return;
- spin_lock_irq(&power_well->lock);
- __intel_power_well_put(power_well);
- spin_unlock_irq(&power_well->lock);
+ power_domains = &dev_priv->power_domains;
+
+ mutex_lock(&power_domains->lock);
+ __intel_power_well_put(dev, &power_domains->power_wells[0]);
+ mutex_unlock(&power_domains->lock);
}
-static struct i915_power_well *hsw_pwr;
+static struct i915_power_domains *hsw_pwr;
/* Display audio driver power well request */
void i915_request_power_well(void)
{
+ struct drm_i915_private *dev_priv;
+
if (WARN_ON(!hsw_pwr))
return;
- spin_lock_irq(&hsw_pwr->lock);
- __intel_power_well_get(hsw_pwr);
- spin_unlock_irq(&hsw_pwr->lock);
+ dev_priv = container_of(hsw_pwr, struct drm_i915_private,
+ power_domains);
+
+ mutex_lock(&hsw_pwr->lock);
+ __intel_power_well_get(dev_priv->dev, &hsw_pwr->power_wells[0]);
+ mutex_unlock(&hsw_pwr->lock);
}
EXPORT_SYMBOL_GPL(i915_request_power_well);
/* Display audio driver power well release */
void i915_release_power_well(void)
{
+ struct drm_i915_private *dev_priv;
+
if (WARN_ON(!hsw_pwr))
return;
- spin_lock_irq(&hsw_pwr->lock);
- __intel_power_well_put(hsw_pwr);
- spin_unlock_irq(&hsw_pwr->lock);
+ dev_priv = container_of(hsw_pwr, struct drm_i915_private,
+ power_domains);
+
+ mutex_lock(&hsw_pwr->lock);
+ __intel_power_well_put(dev_priv->dev, &hsw_pwr->power_wells[0]);
+ mutex_unlock(&hsw_pwr->lock);
}
EXPORT_SYMBOL_GPL(i915_release_power_well);
-int i915_init_power_well(struct drm_device *dev)
+int intel_power_domains_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ struct i915_power_domains *power_domains = &dev_priv->power_domains;
+ struct i915_power_well *power_well;
- hsw_pwr = &dev_priv->power_well;
+ mutex_init(&power_domains->lock);
+ hsw_pwr = power_domains;
- hsw_pwr->device = dev;
- spin_lock_init(&hsw_pwr->lock);
- hsw_pwr->count = 0;
+ power_well = &power_domains->power_wells[0];
+ power_well->count = 0;
return 0;
}
-void i915_remove_power_well(struct drm_device *dev)
+void intel_power_domains_remove(struct drm_device *dev)
{
hsw_pwr = NULL;
}
-void intel_set_power_well(struct drm_device *dev, bool enable)
+static void intel_power_domains_resume(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- struct i915_power_well *power_well = &dev_priv->power_well;
+ struct i915_power_domains *power_domains = &dev_priv->power_domains;
+ struct i915_power_well *power_well;
if (!HAS_POWER_WELL(dev))
return;
- if (!i915_disable_power_well && !enable)
- return;
-
- spin_lock_irq(&power_well->lock);
-
- /*
- * This function will only ever contribute one
- * to the power well reference count. i915_request
- * is what tracks whether we have or have not
- * added the one to the reference count.
- */
- if (power_well->i915_request == enable)
- goto out;
-
- power_well->i915_request = enable;
-
- if (enable)
- __intel_power_well_get(power_well);
- else
- __intel_power_well_put(power_well);
-
- out:
- spin_unlock_irq(&power_well->lock);
-}
-
-static void intel_resume_power_well(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct i915_power_well *power_well = &dev_priv->power_well;
+ mutex_lock(&power_domains->lock);
- if (!HAS_POWER_WELL(dev))
- return;
-
- spin_lock_irq(&power_well->lock);
+ power_well = &power_domains->power_wells[0];
__intel_set_power_well(dev, power_well->count > 0);
- spin_unlock_irq(&power_well->lock);
+
+ mutex_unlock(&power_domains->lock);
}
/*
* to be enabled, and it will only be disabled if none of the registers is
* requesting it to be enabled.
*/
-void intel_init_power_well(struct drm_device *dev)
+void intel_power_domains_init_hw(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
return;
/* For now, we need the power well to be always enabled. */
- intel_set_power_well(dev, true);
- intel_resume_power_well(dev);
+ intel_display_set_init_power(dev, true);
+ intel_power_domains_resume(dev);
/* We're taking over the BIOS, so clear any requests made by it since
* the driver is in charge now. */
dev_priv->display.update_wm = NULL;
}
dev_priv->display.init_clock_gating = haswell_init_clock_gating;
+ } else if (INTEL_INFO(dev)->gen == 8) {
+ dev_priv->display.init_clock_gating = gen8_init_clock_gating;
} else
dev_priv->display.update_wm = NULL;
} else if (IS_VALLEYVIEW(dev)) {
INIT_DELAYED_WORK(&dev_priv->rps.delayed_resume_work,
intel_gen6_powersave_work);
}
-